QUESTIONS BY COMPANY

Coupang LeetCode Questions 2026

Browse LeetCode problems frequently asked by Coupang. Filter by difficulty and timeframe to focus your interview prep.

Last updated: 20 Feb 2026

Timeframe

Difficulty

Problem	Difficulty	Frequency	Topics
Regular Expression Matching	HARD	75%	StringDynamic ProgrammingRecursion
Unique Paths	MEDIUM	62.5%	MathDynamic ProgrammingCombinatorics
Design In-Memory File System	HARD	87.5%	Hash TableStringDesignTrieSorting
Subsets	MEDIUM	100%	ArrayBacktrackingBit Manipulation
Word Break	MEDIUM	100%	ArrayHash TableStringDynamic ProgrammingTrieMemoization
LRU Cache	MEDIUM	100%	Hash TableLinked ListDesignDoubly-Linked List
Number of Islands	MEDIUM	62.5%	ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
Range Module	HARD	87.5%	DesignSegment TreeOrdered Set
Course Schedule	MEDIUM	87.5%	Depth-First SearchBreadth-First SearchGraph TheoryTopological Sort
Find Pivot Index	EASY	87.5%	ArrayPrefix Sum
Basic Calculator II	MEDIUM	50%	MathStringStack
Split BST	MEDIUM	87.5%	TreeBinary Search TreeRecursionBinary Tree
Cheapest Flights Within K Stops	MEDIUM	50%	Dynamic ProgrammingDepth-First SearchBreadth-First SearchGraph TheoryHeap (Priority Queue)Shortest Path
Longest Substring with At Most K Distinct Characters	MEDIUM	100%	Hash TableStringSliding Window
Design Twitter	MEDIUM	75%	Hash TableLinked ListDesignHeap (Priority Queue)
Decode String	MEDIUM	100%	StringStackRecursion
LFU Cache	HARD	100%	Hash TableLinked ListDesignDoubly-Linked List
Longest Duplicate Substring	HARD	75%	StringBinary SearchSliding WindowRolling HashSuffix ArrayHash Function
Increasing Triplet Subsequence	MEDIUM	50%	ArrayGreedy
Sliding Window Maximum	HARD	75%	ArrayQueueSliding WindowHeap (Priority Queue)Monotonic Queue

Need Help Solving These Problems?

CodingInterviewAI can instantly identify algorithms and generate optimal solutions for any LeetCode problem. Get step-by-step explanations and ace your next technical interview.

CodingInterviewAI

Home Blog Give Feedback

Legal

Terms of Use Privacy Policy Legal Notice